A grenade attack on a mosque in the southern Philippines early Wednesday killed two people and wounded four others just days after a deadly church bombing, Reuters reports. The mosque attack occurred shortly after midnight in Zamboanga, a predominantly Christian province in the restive Mindanao region. Zamboanga sits just northeast of the Muslim-majority archipelago where the twin cathedral bombings killed at least 20 people. Regional task force commander Colonel Leonel Nicolas told Reuters the grenade incident was “not a retaliatory act”.